131422554 has 32 divisors (see below), whose sum is σ = 294168000. Its totient is φ = 43489872.

The previous prime is 131422553. The next prime is 131422579. The reversal of 131422554 is 455224131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (131422553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1249 + ... + 16260.

It is an arithmetic number, because the mean of its divisors is an integer number (9192750).

Almost surely, 2^131422554 is an apocalyptic number.

131422554 is an abundant number, since it is smaller than the sum of its proper divisors (162745446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131422554 is a wasteful number, since it uses less digits than its factorization.

131422554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17659 (or 17653 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 131422554 is about 11463.9676377771. The cubic root of 131422554 is about 508.4207897781.

Adding to 131422554 its reverse (455224131), we get a palindrome (586646685).

The spelling of 131422554 in words is "one hundred thirty-one million, four hundred twenty-two thousand, five hundred fifty-four".